SANDISK Optimus GX PRO 850X 1TB Heatsink vs ADATA LEGEND 850 2TB SSD Comparison

SANDISK Optimus GX PRO 850X 1TB Heatsink and ADATA LEGEND 850 2TB are both solid state drives with the same Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in Capacity.

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SANDISK Optimus GX PRO 850X 1TB Heatsink	ADATA LEGEND 850 2TB
Prices (Change region) In Stock Free shipping $349.99 In Stock Free shipping $349.99	Prices (Change region) Out of Stock Free shipping $105.39 Out of Stock Free shipping $213.90
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Brand SanDisk	Brand ADATA
Model SDSP81100TAH-000E0 SDSP81100TAH	Model ALEG-850-2TCS
Release Date 📅 February 2026	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (2 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.35	Price/GB $0.05
GB/$1 2.86	GB/$1 18.98
Series -	Series LEGEND 850
Capacity 1000 GB	Capacity 2000 GB
Interface PCIe Gen4 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller -	SSD Controller Silicon Motion SM2269XT
NAND Flash Type -	NAND Flash Type 3D NAND
Max Sequential Read -	Max Sequential Read Up to 5,000MB/s* (PC/Laptop) Up to 4,600MB/s (PS5)
Max Sequential Write -	Max Sequential Write Up to 4,500MB/s
MTBF -	MTBF 2,000,000 hours